Balanced Diet for an Adult Essay Example for Free

Balanced Diet for an Adult try out fodder is an integral part of human life providing energy for cellular activities to keep us wellnessy. correspond to World Health Organization (2013), healthy alimentation is ingesting an adequate and well equilibrate diet in relation to the bodys dietetical needs and when combined with regular physical activities is the cornerstone to considerably health. A diet containing the right portions of all the five nourishment groups of the Eatwell Plate (figure1 and appendix1 for recommended servings) known as a balanced diet will provide the organic macronutrients including proteins, carbohydrates and lipids and the micronutrients, vitamins and minerals to sustain life. Only ingested carbohydrates, proteins and lipids will count towards heart and soul caloric intake and will be digested into monomers like glucose for concentration and assimilation. home(a) Health Service (2012) recommends periodic caloric intake of 2500Kcal and 2000Kcal which will be derived from the proteins, lipids and carbohydrate sources in a diet for average with child(p) males and females separately.Age, sex, health condition and physical activities influence dietary needs. This essay will discuss a balanced diet for an magnanimous including the structure, sources, functions, recommended daily allowance (RDAs), deficiency and repletionive effects of the macronutrients. Also the micronutrients and peeing which atomic number 18 not considered as nutrients will be discussed.THE FOOD PYRAMIDpicFigure1(NHS 2011)Carbohydrates contain ampere-second, hydrogen and atomic number 8. British f ar tail end (2013), recommends that 47.7% (203g) and 48.5% (275g) of daily energy should come from carbohydrates for females and males respectively with 29g being roughages. Carbohydrates exist naturally or smashing as monosaccharides that argon reducing prizes. Monosaccharides build the complex carbohydrates, disaccharides and polysaccharides through d ehydration synthesis. Monosaccharides have general edict (CH2O)n where n determines whether pentose(5Carbons) or hexose (6Carbons). Glucose found in maple syrup, fructose in corn syrup and galactose in honey be hexose-i approximatelyrs having the same formula, C6H12O6 but different structures.The disaccharides with the general formula C12H22O11 atomic number 18 sucrose make from fructose and glucose, malt sugar from two glucose molecules and lactose from galactose and glucose. Sucrose is derived from beet sugar, lactose from milk and maltose from vinegar. The polysaccharides with general formula (C6H10O5)n where 40n3000, exist as starch or non-starch polysaccharides (NSPs) which john be soluble or insoluble. Starch consists of glucose molecules joined by glycosidic bonds.The NSPs include oligosaccharide (raffinose) and cellulose (dietary fibre). Potatoes, yams and cassava are rich in starch and are very digestible. Whole grain cereals, legumes (appendix2), fruits and storage ve ge fudges like asparagus and cabbage are rich in the NSPs. Raffinose is an indigestible trisaccharide of fructose,glucose and galactose with formula C18H32O16. Animal sources of carbohydrates are liver and scallops.Carbohydrates provide fragrance and are the primary source of energy especially for brain and blood cells. Cellular respiration converts glucose monomers into ATP. Fats crappernot be oxidised without glucose. Most NSPs are partially digestible or indigestible due to lack of -galactosidae (enzyme) in GI Tract. They reduce glycaemia index and plasma cholesterol levels, addition bile acid excretion, promote usual laxation and forbid breast cornerstonecer, gallstones, haemorrhoids, and irritable bowel syndrome (Kumar et all 2012).Further much, Kumar (2012) concluded that supernumeraryive carbohydrates will bm dental decay, kidney damage, stroke, diabetes due to obesity and short term conditions like hyperglycaemia. Carbohydrate deficiency will capture constipation, plenteousigue, weak immunity, muscle cramps and ketosis this is very rare as 50g/day of carbohydrate is need to prevent ketosis.THE DEHYDRATION SYNTHESIS TO FORM MALTOSEpicFigure2EQUATION (C6H12O6 + C6H12O6 = C12H22O11 + H2O)(Marshall University 2012)Proteins or polypeptides consist of three to 100000 or more long chains of the organic molecules called amino acids joined together by covalent peptide bonds. A protein of two amino acids is called a dipeptide. There are 20 common forms of amino acids either termed non-essential (synthesised by the liver) and essential that needs to be ingested. Proteins consist of a central carbon atom, a hydrogen atom, amino group (-NH2), Carboxylic group (-COOH) and the variable R group (figure3).The term amino acid is derived from the amino and carboxyl groupic groups that all amino acids have in common. According Kuil (2012), principal sources of proteins are lean meat, seafood, poultry, eggs, cereals, legumes (refer to appendix3), cereals and process food like low- gamy milk.Proteins form about 45% of human body and perform the following vii essential functions structural (hair, ligaments), contractile (muscles), transport (haemoglobin), metabolic regulation (enzymes), buffering, defence (antibodies) and coordination and control (hormones) (Martini 2006). Haemoglobin transports oxygen and a lack of protein (haemoglobin) can deny vital organs the needed oxygen for metabolism.Protein deficiency can also cause changeigue, anaemia, weak immunity, skin problems, impairment of cognition and mental health problems. Whereas excessive proteins can cause obesity, osteoporosis and kidney stones (Georgetown University 2012). About 15% of an adults caloric intake should come from protein equivalent to 56g and 46g for male and female respectively (Centre for Diseases check up on and Prevention, 2012).DEHYDRATION OF AMINO ACIDS TO FORM DIPEPTIDE PROTEINSpicFigure3(Marshall University 2012)Lipids are made up of an even number of ca rbon from 12 to 20, oxygen, hydrogen and sometimes traces of phosphorus, sulphur or nitrogen. Lipids are grouped into 4 steroids, phospholipids, waxes and glycerides. Most of the 70 identified lipids are synthesised by the body whereas linoleic (omega6) and alpha-linolenic (omega3) acids are two essential lipids to be ingested.They are mostly insoluble due to the long chain of hydrophobic carbon-carbon end bonded to a short hydrophilic carboxyl group. The double covalent bond, (C=C) determines whether saturated (no C=C) or monounsaturated (1 C=C) or polyunsaturated (2 or more C=C). Glycerides are made up of glycerol bonded to 1 or more fatty acids by dehydration synthesis, triglyceride with 3 fatty acids is the predominant of the lipids (refer figure4). Unsaturated sources of lipids are olive oil, peanut, salmon, halibut and avocados. Saturated sources are butter, sausage and hydrogenated oil.According to British Dietetic fellowship (2013), adults should consume not more than 20- 30g of saturated-fat with 5g or little being trans-fat since saturated lipids are high in cholesterol. The structural lipids form cell membranes. Also fat cushions and protects organs including liver, heart, and kidney, energy source twice as much as carbohydrates and proteins, thermoregulation (insulation), sex hormones, transport vitamins and monounsaturated fat can decrease cholesterol levels (USA division of Agriculture, 2010). Excessive consumption of lipids will lead to obesity which is characterised by high BMI as shown in appendix 2, cardiovascular diseases, hypertension, colorectal cancer and diabetes, whereas deficiency will response in the body lacking the vital vitamins A,D,E and K (Schenker, 2012).DEHYDRATION SYNTHESIS TO FORM TRIGLYCERIDEpicFigure4(Marshall University 2012)The micronutrients, vitamins and minerals are needed in minute quantities. Minerals can be classified as major or trace of which a few are essential including sodium, thou, magnesium, zinc, iron, calcium, iodine, and so on (refer to appendix4 for RDAs). According to Higdon and Drake (2011), sources of minerals are plants that derive them from the soil and move on the food chain to the herbivores like cattle that eat them. Spinach, legumes, whole grains, dairy products, red meat, soybeans, salmon, cod, iodized table salt (iodine, sodium, chlorine) and eggs are excellent sources of minerals.According to Whitley and Rolfes (2011), minerals perform the following functions the electrolytes, sodium, potassium and chlorine publicize nerve impulses, control fluid balance (providing optimum pH for enzyme activities), control blood pressure and slack and contract muscles. atomic number 30, copper and selenium are antioxidants they reduce the risk of heart diseases. Iron forms haemoglobin. Sodium and potassium coregulate ATP production. Calcium and phosphorus control blood clotting and together with magnesium build bones, teeth, verify muscle and nerve cells. Iodine is needed for the production of thyroxin deficiency will cause goitre.Since some minerals are coenzymes, deficiency will cause malfunctioning cellular activities (digestion, metabolism). Iron deficiency causes anaemia whereas calcium, phosphorus and magnesium (hypocalcaemia) deficiency will cause osteoporosis. Calcium, magnesium and the electrolytes deficiencies will cause weakness, muscle cramps and impaired alertness. Zinc deficiency causes diarrhoea, skin and prostate cancers. Their intake should be balanced with use and excretion as excess may cause Hyperkalaemia (potassium), kidney-stones (calcium) and hypernatremia (sodium).Vitamins are grouped into water soluble (WSV) including C and B complex vitamins they cannot be stored and therefore, it is imperative to be part of a balanced diet, and fat soluble (FS) including vitamins K,E,D, and A they can be stored (refer appendix 5 for RDA). Green leafy vegetables (lettuce), oranges, kiwi fruit, avocados, whole grains and cereals, banana, dairy pr oducts, liver, poultry, pork, oily fish, eggs, soybeans, chickpeas and cockamamie are excellent sources of the vitamins (Firth 2011). Vitamin K can be synthesised in the intestine which helps the blood clot whereas Vitamin D can be synthesised by the body using sunlight to help the absorption of calcium and phosphorus (Cranney et al (2010). Vitamins A and C build immunity. Vitamins B1,B2,B3, and biotin help release energy.Vitamin A, niacin and pantothenic acid aid the absorption and use of macronutrients monomers. Vitamin C makes collagen and enhances folate absorption. Vitamin deficiency generally causes weak immunity and osteoporosis (Vitamin D), scurvy (Vitamin C), beriberi (B1), anaemia (B12 and folate) and dark blindness (Vitamin A). Excessive amounts of vitamins E and K are usually not harmful but excess A,D and the WSV which can be excreted cause kidney problems and hypercalcaemia (excess D). Excessive vitamin C causes diarrhoea (NHS 2012).In conclusion, spending overly on supplements and creams as well as engaging in dangerous diets like the Atkins Diet are not necessary. The secret to healthy living is carefully selecting the right proportions of food from the Eatwell plate, drinking enough water in combination with regular exercises. Figure 5 and appendix 6 show functions of water. Consider the positives and negatives when selecting food products such as red meat rich in protein but high in cholesterol whereas fatty fish enhances calcium absorption.Soybean, liver, green leafy vegetables, whole grains and legumes will provide almost all the nutrients combine them in your diet in right proportions for optimal hormonal, metabolic, mental and physical functions of the body. It is important to concern a doctor before starting any diet as nutritional needs are affected by health and some medications affect absorption of nutrients.FUNCTIONS OF WATER IN THE dustpicFigure 5Mayo infrastructure for Medical Education and Research, 2013LIST OF APPENDIXESAPP ENDIX 1FOOD GROUPSERVINGS PER mean solar day Carbohydrates including bread, pasta, rice, potatoes and other starchy foods 6-10 servings Fruits and vegetables 3-5 servings Meat, fish, eggs, beans and roughened 2-3 servings Milk and dairy foods 2-3 servings Food and drinks high in fat and/or in sugar Use sparingly University of Michigan Integrative medicament, 2010APPENDIX 2 OBESITY AND BODY MASS INDEX (BMI)BMI LEVEL OF OBESITY Below 18.5 Underweight From 18.5-24.9 Healthy Range From 25-30 Pre Obese to a higher place 30 Obese NHS, 2012APPENDIX 3 FOOD GROUPS AND EXAMPLESFOOD GROUP EXAMPLES Legumes Beans, Lentils, Peas, Chickpeas, French beans, Kidney , soybeans, Coco beans etc. Whole grains Barley, Corn, Millet, Oats, Rice, Milo, Wheat Green leafy vegetables Spinach, Broccoli, Lettuce, Cabbage, Mustard green, Kale examples APPENDIX 4 MINERALS AND THEIR RDASYMBLE SOURCES RDA Na (Sodium) postpone Salt, Sea vegetables, spinach, milk 6g Ca (Calcium) Salmon, Sardine, eggs, dairy products, nuts, oregano 700mg K (Potassium) Spinach, legumes, tomatoes, banana, avocado, whole grains and 3500mg yams P (Phosphate) Fish, poultry, oats, rice, red meat, 700mg Fe (Iron) Eggs, spinach, shrimps, soybeans, lentils, tomatoes, olives, M=8.7mg / F=4.8mg tomatoes Mg (Magnesium) Spinach, soybean, sea vegetables, tomatoes, beans, brazil nutsM=300mg / F=270mg I (Iodine) Eggs, milk, fish, shellfish, yoghurt, strawberries, iodised 0.14mg salt Se (Selenium) Cod, salmon, garlic, lamb, cheese, calf liver, barley, brazil 75mcg nuts Zn (Zinc) Calf liver, spinach, eggs, oats, oyster, lean pork and beef, M=5.5-9.5mg / F=4-7mg asparagus USA Department of Agriculture / Department of Health, 2010APPENDIX 5 VITAMINS AND THEIR RDASVITAMIN SOURCES RDA vitamin A1 (A) Liver, fish oil, carotenoids, milk beef up M=0.7mg / F=0.6mg Ascorbic acid (C) Citrus (oranges), kiwi fruit, broccoli 40mg thiamine (B1) Liver, pork, whole grains and products M=1mg / F=0.8mg Ribo flavin (B2) Liver, eggs, milk, rice, mushrooms M=1.3mg / F=1.1mg Niacin (B3) Poultry, fish, beef, peanut butter, legumes M=17mg / F=13mg Pyridoxine (B6) Liver, pork, legumes, fish, whole grains M=1.4mg / F=1.2mg Cobalamin (B12) Beef, poultry, cod, salmon, cheese, eggs 0.0015mg Vitamin E Vegetable oil, green vegetables, nuts 12mg Folate Broccoli, peas, asparagus, brown rice 0.2mg Pantothenic acid Milk, fruits, veggies, meat, fish, grains 10mg Biotin Cottage cheese, liver, eggs, peanut, grain 300mcg Vitamin K Green vegetables, fruits, nuts 75mg Note that Vitamin K can be synthesised in the intestine whereas Vitamin D can be derived salmon, fortified cereals and juices, milk and sunlight (No RDA but 15minutes in the sun thrice a week is enough) USA Department of Agriculture / Department of Health, 2010APPENDIX 6 RECOMMENDED DAILY ALLOWANCE FOR WATERSEX RDA FOR WATER manful 3.7L with no upper limit increase with exercise to rehydrate FEMALE 2.7L with no upper limit increase with exercise to rehydrate and increase intake when breast feeding. INSTITUTE OF MEDICENE 2004REFERENCE LISTONLINE British Dietetic Association (2013) Food fact sheet cholesterol Online uncommitted from http//www.bda.uk.com/foodfacts/cholesterol.pdf Accessed on 20/02/2013. British Nutrition Foundation (2013) Confusion on fat and heart health Online. Available from http//www.nutrition.org.uk/nutritioninthenews/headlines/fats Accessed on 20/02/2013. Centre for Diseases Control and Prevention (2012) Nutrition for everyone Protein Online Available from http//www.cdc.gov/nutrition/everyone/basics/protein.html Accessed on 19/12/2013. Cranney et al, (2007) Effectiveness and recourse of vitamin D in relation to bone health Online Available from http//www.ncbi.nlm.nih.gov/pubmed/18088161?dopt=Abstract Accessed on20/02/2013. play of Medicine, Food and Nutrition Board. (2004) dietetic reference intakes Water, Potassium, Sodium, Chloride and Sulphate. Washington DC make for of Medicine. Online. Available from www.iom.edu/Reports/2004/Dietary-Reference-Intakes-Water-Potassium- Accessed on 20/02/2013. Institute of Medicine, Food and Nutrition Board (2010) Dietary reference intakes for Calcium and Vitamin D. Washington DC Institute of Medicine. Online. Available from http//www.iom.edu//media/Files/Report%20Fil.pdf Accessed on 20/02/2013. Marshall University (2012) Online Available from http//science.marshall.edu/murraye/alpha_amylase.htm Accessed on 18/02/2013. Mayo Foundation for Medical Education and Research no date Nutrition and healthy eating functions of water in the body. Online Available from http//www.mayoclinic.com/health/medical/IM00594 Accessed on 19/02/2013. National Health Service (2011) Online Available from http//www.nhs.uk/Livewell/Goodfood/Pages/eatwell-plate.aspx Accessed on 17/02/2013. National Health Service (2011) Online Available from http//www.nhs.uk/chq/Pages/3215.aspx?CategoryID=51 Accessed on 17/02/2013. National Health Service (2012) Onlin e Available from http//www.nhs.uk/chq/Pages/1126.aspx?CategoryID=51SubCategoryID=164 Accessed on 17/02/2013. United States of America. Department of Agriculture/Department of Health and Human Services (2010), Dietary guidelines for Americans, Washington DC US Government Printing Office. Online Available fromhttp//www.health.gov/dietaryguidelines/dga2010/DietaryGuidelines2010.pdf Accessed 19/02/2013. University of Michigan Integrative Medicine (2010) Healing foods pyramid Online Available from http//www.med.umich.edu/umim/food-pyramid/fats.htm Accessed on 20/02/2013. World Health Organisation (2013) Online Available from http//www.who.int/topics/nutrition/en/ Accessed 17/02/2013.ONLINE JOURNALS Kumar et all (2012) Dietary roles of non-starch polysaccharides in human nutrition a review. Critical Reviews in Food Science and Nutrition, Volume 52(10). Online Available from http//www.tandfonline.com/doi/abs/10.1080/10408398.2010.512671?url_ver=Z39.88-2003rfr_id=oriridcrossref.orgrfr_dat=c r_pub%3dpubmed. Accessed on 23/02/2013. Schenker S. (2012). UK recommendations for dietary fat should they be reassessed in light of the recent FAO/WHO recommendations? Nutrition Bulletin, 37(1), pp. 37-46. Online Available from http//onlinelibrary.wiley.com/doi/10.1111/j.1467-3010.2011.01946.x/full Accessed on 20/02/2013.BOOKS Firth L. (2011) Nutrition and diet. Issues 205, Cambridge Independence Educational Press. Higdon, J. and Drake, V. J. (2011) An evidenced-based approach to vitamins and minerals health benefits and intake recommendation. 2nd Edition. New York Thieme. Kuil W. A D. (2012) Sources of dietary protein and risk of hypertensionin a general Dutch population, British Journal of Nutrition, 108 (10), pp. 1897-1903. Martini F. H. (2006) Fundamentals of variant and physiology. 7th Edition. San Francisco Pearson Education. pp. 39-58. Whitney, E. and Rolfes S. R. (2011) Understanding nutrition. 12th Edition. Belmont Wadsworth.BIBLIOGRAPHYONLINE British Dietetic Association (2013) Food fact sheet sugar Online Available from http//www.bda.uk.com/foodfacts/Sugar.pdf Accessed on 20/02/02013 Georgetown University (2012) Proteins what does it do? Online Available from http//www.georgetown.edu/admin/auxiliarysrv/dining/nutrition/protein.html Accessed on 20/02/2013. Stoner, L et al (2012) Preventing a Cardiovascular Disease Epidemic among Indigenous Populations through Lifestyle Changes. Online Available from http//www.ncbi.nlm.nih.gov/pmc/articles/PMC3354392/ Accessed on 20/02/2013.BOOKS Blomhoff R, et al. Health benefits of nuts potential role of antioxidants. British Journal of Nutrition. 2006 96. New Zealand. Ministry of Health (2003), Food and nutrition guideline for healthy adults a background paper, Wellington Ministry of Health. Rolfes, S. R. et al (2009) Understanding normal and clinical nutrition.8th Edition. Belmont Wadsworth.ONLINE VIDEOS Dairy essential nutrition or health saboteur? Keon, J. (2011) Online video. Available from http//www.youtub e.com/watch?v=cp9MwjW5QX0 Accessed on 20/02/2013. Good nutrition made easy how to grow a healthy adult Davidson, L. (2012) Online video. Available from http//www.youtube.com/watch?v=6qAeAzreESg Accessed on 20/02/2013.